The substances undergoing slow oxidation in the body during respiration are known as
Oxidases
Metabolites
ATP
ADP
Correct Answer :
B. Metabolites
Related Questions
The medullary inspiratory centre is always under direct control of
chemicals
physical conditions
nerves
all of these
The greatest volume of air that can be expired after a maximum inspiratory affect, is its
residual volume
tidal volume
vital capacity
lung volume
In a man at rest the body's cells consume approximately
5000 ml of oxygen per day
5000 ml of oxygen per hour
500 ml of oxygen per hour
200 ml of oxygen per minute
The iron containing haemoglobin pigment is a
protein
polysaccharide
enzyme
none of these
In rabbits, respiration takes place in
Cells lining the lung cavities
Cells found in blood
All living cells of the body
RBC only
Among the following, the maximum amount of usable energy is released per-molecule of glucose by
yeast cell in fermentation
a liver cell in glycolysis
an Amoeba in aerobic respiration
a muscle cell in lactic acid formation
Which of the following can respire in total absence of air (anoxyliosis)?
Amoeba
Bed bug
Hydra
Tapeworm
The carbon dioxide pressure in the lung capillaries is
less than that in alveolar air
more than that in alveolar air
equal to that in alveolar air
similar to oxygen pressure in the capillaries
Pulmonary artery
returns highly oxygenated blood to the left heart for distribution throughout the body
returns highly oxygenated blood to right heart for distribution throughout the body.
delivers blood to lungs low in oxygen
delivers highly oxygenated blood in lungs
The respiratory disease immediately related to cigarette smoking is
hypercapnia
pulmonary edema
hypoxia
emphysema
To take air into the lungs, the diaphragmmust be
dome shaped
oblique
flattened
normal
The capacity of lungs for air in a healthy man is about
500 ml
1000 ml
2000 ml
3000 ml
The vibrations of which of these membranes produces vocal sounds?
Glottis
Vocal cords
Vocal sacs
Epiglottis
In response to high altitude hypoxia supply of oxygen to the tissue is maintained by
increased alveolar ventilation and increased cardiac output
shift in the haemoglobin dissociation curve to the right
increased erythrocytes and haemoglobin content of blood
all of these
Emphysema is a respiratory disease in which
the larynx is closed
the trachea gets narrowed
the gas exchange area of lungs is increased
the gas exchange area of lungs is decreased
Air directly enters the tracheae via the
external nares
pharynx
larynx
bronchi
A normal man respires in a minute
25-30 times
10-15 times
14-18 times
20-25 times
The regulatory centre for respiration is situated in the
cerebral cortex
hypothalamus
medulla oblongata
procencephalon
Oxygen will diffuse through a membrane only if it is
moist
immersed in water
very thin
vascular
The process of breathing-in of oxygen rich air from outside is called
expiration
inspiration
respiration
oxidation
The membrane covering the lungs is
conjunctiva
pleura
meninges
peritoneum
The respiratory tubes devoid of car-tilagenous rings are
trachea
bronchi
bronchioles
none of these
The term used to denote the difference in volume between the total lung capacity and the vital capacity is
tidal volume
ventilation rate
residual volume
all of these
The respiratory portion of the respiratory tract consists of
Pharynx, larynx, trachea, bronchi and bronchioles
Trachea, bronchi, bronchioles, alveolar ducts and alveoli
Respiratory bronchioles, alveola ducts, alveolar sacs and alveoli
Bronchi, bronchioles, alveolar ducts, alveolar sacs and alveoli
The functional unit of the lung is
neuron
alveolus
bronchus
none of these
The rate and depth of breathing is primarily controlled by medulla by
the oxygen content of the blood
the nitrogen content of the blood
receptors in the larynx
the carbon dioxide content of the bkxxl
Oxygen is transported to every cell of the body through
RBC
WBC
Both (a) and (b)
RBC and hormones
The "mountain sickness" in persons climbing to high attitudes without the aid of oxygen cylinders is due to
lack of sufficient amount of haemoglobin
lack of sufficient amount of erythrocytes
arterial hypoxia
anaemic hypoxia
The opening into the wind pipe or trachea is called
larynx
epiglottis
glottis
bronchi
The maximum volume of inspirable air is called
vital capacity
residual volume
inspiratory capacity
any of these